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MarketScreener Homepage  >  Equities  >  Tokyo  >  Sony Corp    6758   JP3435000009

SONY CORP (6758)
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Sony : Achieves World's Fastest1 Deep Learning Speeds through Distributed Learning

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11/14/2018 | 01:37pm CET

Tokyo, Japan - Sony Corporation (hereafter 'Sony') today announced that by utilizing its deep learning development framework 'Core Library: Neural Network Libraries' in addition to the AI Bridging Cloud Infrastructure (ABCI), a world-class computing infrastructure for AI processing constructed and operated by Japan's National Institute of Advanced Industrial Science and Technology (AIST), it has achieved the fastest1 deep learning speeds in the world.

Deep learning is a method of machine learning which uses neural networks modeled after the human brain. By harnessing deep learning, image and sound recognition capabilities have seen rapid growth in recent years, even outperforming humans in certain domains. However, the size of data used in this learning and model parameters used to improve recognition accuracy have been increasing, causing a subsequent rise in calculation times. In some cases, it has taken weeks or even months to conduct a single learning session. Because AI development requires a continuous process of trial-and-error, shortening this learning time is of the utmost importance. To this end, distributed learning using multiple GPUs as a means of shortening learning times is emerging as a popular solution.

When increasing the number of GPUs for distributed learning, there are cases where an increase to batch sizes (the amount of data to be processed at one time) halts the learning process, and other cases where the learning speed actually decreases due to the processing delays caused by data transmission times between GPUs. By utilizing technology that can determine the optimal batch sizes and appropriate number of GPUs based on the current state of the learning process, Sony makes it possible to carry out learning even in large-scale GPU environments such as ABCI, and increased transmission speeds between GPUs through data synchronization technology optimized for ABCI's system structure. These technologies were implemented into the 'Neural Network Libraries,' and used ABCI computing resources provided by AIST's 'ABCI Grand Challenge' to carry out learning. As a result, it was able to complete ImageNet/ResNet-502 (the general industry benchmark used to measure distributed learning speeds for deep learning) in approximately 3.7 minutes (when using as many as 2,176 GPUs), achieving the world's fastest speeds to date. The results of this research have been published at 'ImageNet/ResNet-50 Training in 224 Seconds (PDF).'

The results of this experiment demonstrate that learning/execution carried out using Neural Network Libraries can achieve world-class speeds, and that by utilizing the same framework, it is possible to conduct technology development using deep learning with a shorter trial-and-error period. Moving forward, Sony will continue development on related technologies and seek to contribute to the development of society using AI technology.

Contact:

Tel: 0484 239 0620

(C) 2018 Electronic News Publishing, source ENP Newswire

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Financials (JPY)
Sales 2019 8 804 B
EBIT 2019 -
Net income 2019 619 B
Finance 2019 1 374 B
Yield 2019 0,57%
P/E ratio 2019 12,01
P/E ratio 2020 12,87
EV / Sales 2019 0,68x
EV / Sales 2020 0,62x
Capitalization 7 378 B
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Mean consensus OUTPERFORM
Number of Analysts 23
Average target price 7 871  JPY
Spread / Average Target 35%
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Managers
NameTitle
Kenichiro Yoshida President, CEO & Representative Director
Osamu Nagayama Chairman
Kevin Kelleher Chief Operating Officer
Hiroki Totoki Chief Financial Officer & Senior Executive VP
Tomoyuki Suzuki Executive VP, Head-Research & Development Platform
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